Enroll in a study or drug trial if you qualify. You can volunteer to participate in a research study or clinical drug trial if you meet the requirements that the researchers are seeking. You might have to meet certain criteria for health conditions to participate, but if you are eligible, then you may be able to make upwards of $1,000 per month. Look into research labs and clinical trials in your area to see if you qualify.
Market your course: The beauty of using a course to make money online is that you can continue to sell it for as long as you’d like. Look for niche communities on Facebook, LinkedIn, or Reddit that might benefit from your content. Guest post on relevant blogs and sites. Look for anywhere you might be able to get in front of the right people. With just a few hours a month you can continue to generate sales.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.
Borrowing could be a key element in this method. Say you borrow $200,000 and put in $50,000 of your own to buy a property for $250,000. Then you develop the property and sell it for $400,000. The property has increased in value by 60% but your $50,000 has now grown fourfold to $200,000. You have to select the right properties in the right areas and develop them wisely.